| Patents for F01B 11 - Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type (808) |
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| 02/12/2015 | US20150040754 Fluid pressure cylinder |
| 01/15/2015 | DE102004019301B4 Verfahren zur Motorsteuerung und entsprechende Motorsteuerung Procedures for engine control and corresponding motor control |
| 01/06/2015 | US8925517 Gas-powered tool motor |
| 12/09/2014 | US8904776 Cylinder driving apparatus using air pressure |
| 11/11/2014 | US8883076 Apparatus and process for recycling absorbent sanitary products |
| 09/12/2014 | WO2014135200A1 Combustion engine comprising a linear generator and a return spring |
| 08/20/2014 | EP2766575A1 Piston pump/ -motor |
| 08/05/2014 | US8794198 Free piston engine |
| 07/29/2014 | US8789456 Piston cylinder-type high-pressure generating device |
| 07/16/2014 | CN102374021B 自由活塞发动机 Free piston engine |
| 07/08/2014 | CA2637634C System and method for electrically-coupled thermal cycle |
| 04/16/2014 | CN102209836B Cylinder driving apparatus using air pressure |
| 04/10/2014 | US20140099216 Free piston type torsion drive compressor |
| 03/18/2014 | US8671825 Fluid pressure cylinder |
| 02/13/2014 | DE102012111067B3 Free-piston device has primary and secondary piston portions which move relative to each other under effect of expansion of working fluid in the expansion space and under action of return spring arranged in spring-back space |
| 01/09/2014 | WO2014007418A1 Physical energy storage system and power generation method using same |
| 01/08/2014 | EP2682584A1 Hydraulic engine |
| 01/01/2014 | EP2679768A1 Electromagnetic Engine |
| 12/31/2013 | CA2558990C Thermal conversion device and process |
| 12/19/2013 | US20130333368 System and method for the production of compressed fluids |
| 12/04/2013 | EP2668400A1 Device and system for monitoring a pneumatically-actuated alternating linear displacement pump |
| 11/26/2013 | DE202013103597U1 Kolbenstangenloser Arbeitszylinder Rodless cylinders |
| 11/14/2013 | DE112012000915T5 Freikolbengenerator Free-piston generator |
| 11/12/2013 | US8578708 Fluid-flow control in energy storage and recovery systems |
| 10/17/2013 | DE102010050244B4 Meißeldirektantrieb für Werkzeuge auf Basis einer Wärmekraftmaschine Direct bit drive for tools on the basis of a heat engine |
| 10/09/2013 | CN103348136A Device and system for monitoring a pneumatically-actuated alternating linear displacement pump |
| 09/26/2013 | WO2013140111A1 Piston engine for generating combined heat and power |
| 09/25/2013 | CN103328770A High efficiency energy conversion |
| 09/17/2013 | US8534184 Replaceable sleeve for a cylinder liner |
| 09/04/2013 | EP2633147A2 Direct drill bit drive for tools on the basis of a heat engine |
| 08/29/2013 | US20130220656 Direct drill bit drive for tools on the basis of a heat engine |
| 07/31/2013 | EP2619415A1 Compressed gas motor for a wash system |
| 07/31/2013 | CN103228868A Compressed-gas motor for a wash system |
| 07/11/2013 | WO2013019446A3 Digital hydraulic opposed free piston engines and methods |
| 06/13/2013 | DE212011100151U1 Verbrennungsmotor Combustion engine |
| 06/12/2013 | EP2601380A1 High efficiency energy conversion |
| 05/23/2013 | DE102011055511A1 Cyclic working piston machine used in heat pump, has electrodes that are arranged in electrical contact with liquid piston at a distance in relative to direction of movement of liquid piston and orientation of magnetic field |
| 05/07/2013 | US8434399 Oilfield equipment composed of a base material reinforced with a composite material |
| 04/18/2013 | WO2013055215A1 Piston pump/ -motor |
| 04/10/2013 | CN103038450A Free-piston internal combustion engine |
| 04/04/2013 | WO2012177795A3 Free piston engines with single hydraulic piston actuator and methods |
| 04/04/2013 | WO2012055392A3 Direct drill bit drive for tools on the basis of a heat engine |
| 03/27/2013 | EP2572075A1 Free-piston internal combustion engine |
| 02/28/2013 | DE112009002714T5 Vorrichtung zum Antreiben eines Zylinders mithilfe von Luftdruck Device for driving a cylinder using air pressure |
| 02/26/2013 | US8381524 Reciprocating expansion engine and piston of a reciprocating expansion engine |
| 01/31/2013 | WO2013014299A1 Device and method for generating electricity from pressurized water and at least one explosive material |
| 01/31/2013 | DE102006043250B4 Mehrfachzylinder-Freikolben-Stirlingmaschinen und -Wärmepumpen in Alpha-Anordnung mit abgestuften Kolben A multi-cylinder free-piston Stirling engines and heat pumps in alpha arrangement stepped piston |
| 01/29/2013 | US8359967 Fluid end reinforced with a composite material |
| 01/22/2013 | US8356984 Hand air pump having gauge device |
| 01/10/2013 | WO2013004860A1 Hydraulic mechanism |
| 01/10/2013 | US20130008306 Reinforced thermoplastic actuator with wear resistant plastic liner |
| 01/01/2013 | US8342078 Reciprocating-piston pump for feeding a liquid |
| 12/27/2012 | DE112010004067T5 Hydraulische Brennkraftmaschinen Hydraulic engine |
| 12/20/2012 | DE102011106574A1 Pumping device for pumping of liquid, has free piston arranged in cylinder, chamber connected with supply line and provided in cylinder, and heat transfer device for transmission of waste heat from chamber to additional pump units |
| 12/06/2012 | US20120304851 Hydraulic cylinder with an o-ring seal of variable geometry |
| 10/31/2012 | EP2516805A2 Free piston engine |
| 10/31/2012 | CN102011644B Internal combustion engine |
| 10/04/2012 | WO2012133242A1 Free-piston generator |
| 10/03/2012 | CN102713154A Energy conversion assemblies and associated methods of use and manufacture |
| 10/02/2012 | US8277206 Device and method for maintaining a static seal of a high pressure pump |
| 09/20/2012 | DE102006008842B4 Kurbelwellenloser Verbrennungsmotor oder Kolbenpumpe Loser engine crankshaft or piston pump |
| 09/12/2012 | CN102667060A Free piston engine |
| 08/23/2012 | WO2012112214A1 Linear free piston combustion engine with indirect work extraction via gas linkage |
| 08/22/2012 | CN101512104B Fluid-powered proportioning pump for dispensing fluid including pump |
| 08/15/2012 | CN102639842A Hydraulic internal combustion engines |
| 08/15/2012 | CN101375018B System and method for electrically-coupled thermal cycle |
| 08/02/2012 | WO2012102683A1 Prime mover engine for vehicle |
| 08/02/2012 | WO2012101379A1 Device and system for monitoring a pneumatically-actuated alternating linear displacement pump |
| 07/18/2012 | CN101688445B Low leakage plunger assembly for a high pressure fluid system |
| 07/04/2012 | EP2470780A2 Displacement drive |
| 07/04/2012 | EP2470752A2 Energy conversion assemblies and associated methods of use and manufacture |
| 06/07/2012 | WO2012074495A1 Prime mover engine |
| 06/06/2012 | EP2459848A2 Energy conversion device |
| 05/30/2012 | CN202250387U Free-piston engine |
| 05/03/2012 | CA2816470A1 Direct drill bit drive for tools on the basis of a heat engine |
| 04/19/2012 | WO2012050541A1 Internal combustion engine |
| 03/29/2012 | WO2012038003A1 Compressed‑gas motor for a wash system |
| 03/29/2012 | CA2810436A1 Compressed-gas motor for a wash system |
| 03/15/2012 | WO2012032264A1 Electric generator set with linear moving elements |
| 03/14/2012 | CN102374021A Free piston engine |
| 02/21/2012 | CA2435194C Internal combustion - engined setting tool |
| 02/09/2012 | WO2012018897A1 High efficiency energy conversion |
| 02/09/2012 | CA2808608A1 High efficiency energy conversion |
| 02/08/2012 | EP2050542B1 Gas burning type driving tool |
| 01/12/2012 | DE102010031010A1 Freikolbenvorrichtung und Verfahren zum Gaswechsel in einem Freikolbenmotor Free-piston device and method for gas exchange in a free-piston engine |
| 12/01/2011 | WO2011149034A1 Reciprocating engine |
| 12/01/2011 | US20110291373 Force Steer Axle Assembly With Redundant Centering |
| 11/24/2011 | WO2011144926A1 Free-piston internal combustion engine |
| 11/10/2011 | WO2011077119A3 Free piston engine |
| 11/09/2011 | EP1470335B1 Reciprocating fluid engine |
| 10/26/2011 | EP2380705A1 Gas combustion type striking tool |
| 10/25/2011 | CA2469417C Linear generator with a swinging piston |
| 10/13/2011 | WO2011012299A3 Energy conversion device |
| 10/05/2011 | CN102209836A Cylinder driving apparatus using air pressure |
| 09/27/2011 | US8024929 Thermal conversion device and process |
| 09/14/2011 | EP2041396B1 Fluid-powered proportioning pump and system for dispensing fluid including such a pump |
| 09/08/2011 | US20110214562 Cylinder driving apparatus using air pressure |
| 09/07/2011 | EP1147331B1 Spool valve for fluid control |
| 08/23/2011 | USRE42633 Spool valve for fluid control |
| 08/17/2011 | CN101500758B Gas burning type driving tool |